If a 24-port switch has a PoE budget of 740 W, how many IEEE 802.3at devices can certainly be powered on by it?
You are planning for client devices in a WLAN that is be upgraded to 802.11ac. Which one of the following devices is more likely to have support for 3x3:3 radios and 256 QAM?
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You are selecting external antennas for use in a bridge link deployment. What chart should you request from the antenna vendors to make an
accurate selection?
Your customer is using PSK as their only authentication. They have an industry requirement to move to a stronger solution. Your recommendation
is to move to a certificate-based type of authentication where both the client and server require certificates. Which EAP type would be the best fit?
Which document provided to your customer should include all devices and parts that are going to be used during the deployment of their WLAN
infrastructure?
The installation crew for your WLAN project wants to install a few APs to locations nearby the ones specified in the RF design document. What next step should occur?
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Prior to meeting with the customer for the first time, you should do which of the following?
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During a validation site survey, you realize that the installers mounted some of the APs above the ceiling. They said that this was a request from the building architect due to aesthetics constraints.
During the requirements gathering, you weren't advised about any aesthetics constraints from the main stakeholder of the project. What should you do in this case?
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Given: As the wireless network administrator for XYZ Company, you are planning to upgrade your aging wireless network infrastructure, as well as
some clients, to support 802.11ac. In your research, you have discovered that your new wireless client devices and infrastructure are 802.11ac,
WMM, and WMM-PS certified by the Wi-Fi Alliance. Some of your existing client devices are 802.11a/b/g devices that do not support WMM.
Given this information, what scenario is possible when your company's employees begin using both types of client devices on the new WLAN?
You are testing a VoWLAN deployment, and your communication measurements show a certain amount of lost packets. What would be an
acceptable packet error rate value to still provide acceptable call quality?
In a multiple channel architecture (MCA) network supporting 802.1X authentication, what aspect of WLAN design affects client roaming efficiency
and effectiveness?
What might limit the ability to locate 802.11 clients using a WLAN infrastructure without an 802.11 tag?
When designing for a PTP outdoor link, what important consideration should be made about local vegetation?(Choose all that apply.)
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An associated STA detects a new BSS with the same SSID as the STA's current BSS. The new BSS uses a different IP subnet than the current BSS.
If the STA is configured to use 802.1X/EAP preauthentication, what is likely to occur?
Which of the following items could be considered constraints when performing a network design?(Choose all that apply.)
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What kind of applications has the character traits of many communications back and forth between the server and client for each transaction initiated by the user?
For example, several files, images and other data files may be required to download to the client with each click from the user. Choose the best answer.
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When live video streaming solutions that transmit simultaneously to more than one recipient are used, what special capability should be considered and configured in all affected WLAN implementations?
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Your customer requires fast secure roaming. Which two types of roaming are specified in 802.11-2016 FT roaming that will help meet this goal?
What is the primary reason for avoiding 160 MHz channels with 802 11 in the 5 GHz band'?
Excessive uplink RTP frame retransmissions can result in ____________.
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When surveying an existing WLAN infrastructure for a possible redesign, you use two Wi-Fi USB adapters to collect RSSI data and two USB
spectrum analysis adapters to collect RF spectrum data. Since your laptop doesn't have enough USB ports, you use a 4-port powered USB 3.0 hub.
What issues could be caused by the use of USB 3.0 that will impact your site survey?
In addition to a copy of your design, which tools should you use to ensure the installation team deploys APs where you have them designed to be
located?
What are the best practices for belter location accuracy when deploying Wi-Fi RTLS?
When troubleshooting coverage issues for a wireless network as it appears to new client associations, you should perform which type of survey?
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In a large enterprise (5000+ wireless users), by what would NOT be a recommended method by which IP addresses and VLANs are assigned to
different clients associated to the same AP?
A customer is acquiring a new VoWLAN system to replace their existing wired phone system. When reading about his system's requirements, you
learned that is requires 25 db of SNR to work as expected. After surveying the environment, you discovered that the noise floor is -88 dBm. What
should be the minimum RSSI value to meet the system's requirements?
You are being asked to design a WLAN for a number of WLAN clients that will use Telnet as the primary application. The customer has asked that you use only the number of APs necessary because of the complex installation and construction costs each AP installation will incur in this particular environment.
What design factors do you consider?
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For an antenna 35 dBi of gain is needed. What antenna type should be used to achieve this gain?
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A WLAN that you designed has been deployed in one area, users ate complaining that the network performs poorly. When you analyze the area you see that a new interferer has been introduced that was not there during the pre-design survey You've been informed that the interferer cannot be removed as it is an essential loT device. What action do you recommend?
What architecture suffers the biggest limitation for sharing control information across APs?
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You're preparing to perform a site survey for a company that processes meat. Some areas are restricted due to high-security. What do you have to
do in order to proceed with the site survey?
Before performing a pre-deployment passive RF survey of a new deployment using survey mapping software, which of the following must be performed?
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You have been tasked with performing safety and operations training for outdoor bridge link installation. The antennas are to be installed on a 70-foot tower on one end and the roof top of an office building on the other end.
What might be required for the tower installation?
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During a customer walkthrough you notice an area of the CAD drawing where it is not accurate. What next step should you take?
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During the deployment of a WLAN the customer complains that the chosen locations for several APs are ruining the aesthetics of the building Instead of changing AP locations and requiring a redesign, what action can you recommend1?
Before performing a pre-deployment passive RF survey of a new deployment using survey mapping software, which of the following must be performed?
As a device starts to shift to lower PHY rates, what factors usually influence a device decision to shift to lower PHY rates?(Choose all that apply.)
An organization is implementing a new WLAN. They are upgrading a very old 802.11g network that only a few devices used Now. they expect more than 250 devices to use the new WLAN that will operate 802.11ax Aps. What wired-side consideration should you address in your design recommendations?
If the amplifier in Question 4 has a noise figure of 10 dB but a gain of 0 dB, what is the total noise figure of the cable, amplifier, and filter in series?
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While using a USB adapter attached to a USB hub and your laptop for protocol analysts you notice that the SNR is lower than expected. The USB adapter is an 802 11 ac 3x3 3 adapter and is connected to a USB 3 hub. What is likely causing the SNR variation?
For what purposes are VPNs typically used in modern WLANs?(Choose all that apply.)
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When performing an indoor predictive site survey to make the WLAN planning and design cycle more efficient, what is a best practice for
configuration of the simulated APs in the predictive modeling software?
You have performed a validation site survey after deploying a WLAN infrastructure that is an All-Wireless-Office. One specific application of your
customer is experiencing delay when using the application after moving from wired connectivity. After your validation, you realized that all APs are
using 80 MHz channel- widths instead of 20 MHz on the 5 GHz band, as it was designed. What can be done to resolve the delay on this
application?
An engineering firm just upgraded their WLAN form nine 802.11n APS to nine 802.11ac APs. After this upgrade, they did not see any improvement
in throughput.
What is the most likely cause of this result?
When designing a static channel plan for an office using voice devices near an airport, which range of channels should be avoided to ensure
optimal performance when implemented?
What part of the 802.11n preamble is used by the receiver to estimate the spatially multiplexed signal channel? What mode is this used in?
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Which DHCP option, when required, should be configured and enabled to help APs locate their wireless LAN controller?
For what types of systems should you request read-only access to in order to perform an analysis of the customer’s existing infrastructure?(Choose all that apply.)
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When designing a new WLAN infrastructure you also need to be aware of now the network is physically deployed and now the network is logically configured What are two documents that are helpful In this case?
When doing some frame capturing over the air during a voice call, you realized that frames on the downlink (from the AP to the client) direction are
not being transmitted with the correct UP value for voice frames, but on the uplink (from the client to the AP) direction are being transmitted
correctly. What's the cause of this issue?
Before connecting, mounting and powering 213 total controller-based APs what action should be taken to ensure that they are configured by the controller once powered on and connected lo the network''
What is the most cost-effective way to accurately measure the height of a ceiling when ladder use is not allowed?
The thermal noise is at −174 dBm/Hz. A spectrum analyzer has a resolution bandwidth of 1 kHz and a 5 dB noise figure. What is the level of the noise floor?
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When installing a cloud-based AP, what is the most common process used?
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When installing APs on high ceilings, what should be the most common PPE to be used?
A museum wants to offer Wi-Fi to its visitors. One of their requirements is to have the APs blend into the design of the museum. What should you
do to meet this requirement?
What advantages are provided by per-user PSKs when compared with ESS-wide PSKs?(Choose all that apply.)
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During a validation site survey, you realize that the installers mounted some of the APs on the wait when the design called Tor a celling mount. They said that this was done because the cabling company did not have the right tools to run the cables above the ceiling. You know that this will cause a difference in how the Wi-Fi signal will radiate throughout the environment. What should you do in this case?
What is the most suitable antenna option to be used when designing a WLAN infrastructure with APs mounted on a ceiling with a height of more
than 20 feet and having all of the client stations used from the floor?
What is the minimum PoE budget needed on a switch to support 6 (six) APs that can only be powered using IEEE 802.3at if no other details are
provided?
When selecting a centralized WLAN architecture, what new problem may arise when you change the data forwarding model from centralized to distributed?
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Given: You are evaluating the theoretical and real-world RF gain benefits of transmit and receive features introduced by 802.11 with MIMO. This
exercise allows you to quantify the features value in a real-world environment.
What is the maximum theoretical signal gain of chip-based TxBF and MRC (as features) when compared to the same AP using only a single
antenna for transmit and receive (effectively simulating a 1x1 chip)?
In what circumstance would you not enable DFS channels on a WLAN infrastructure?
Why should band steering algorithms allow stations to connect to the 2.4 GHz band after some number of ignored Probe Requests?
Location technology (RTLS) can use which of the following methods?(Choose all that apply.)
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What are the three biggest WLAN enterprise verticals?(Choose all that apply.)
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What is the purpose of Friis transmission equation [ (LdB) = 20 log(d) + 20 log (f) - 27.55 ]?
A wireless network with fewer APs at higher power levels to cover a large area is said to be which of the following?
Response:
TESTED 24 Nov 2024
